Optimizing the shielding properties of strength-enhanced concrete containing marble

IF 1.2 Q3 PHYSICS, MULTIDISCIPLINARY

Papers in Physics Pub Date : 2020-09-08 DOI:10.4279/pip.120005

A. Abdel-Latif, M. Kassab, M. Sayyed, H. Tekin

引用次数: 9

Abstract

The purpose of this study is to develop a low cost, locally produced concrete mixture with optimum marble content. The resulting mixture would have enhanced strength properties compared to the non-marble reference concrete, and improved radiation shielding properties. To accomplish these goals five concrete mixtures were prepared, containing 0, 5, 10, 15 and 20 % marble waste powder as a cement replacement on the basis of weight. These samples were subjected to a compressive strength test. The shielding parameters such as mass attenuation coefficients (μm), mean free path (MFP), effective atomic number (Zeff ) and exposure build-up factors (EBF) were measured, and results were compared with those obtained using the WinXcom program and MCNPX code in the photon energy range of 0.015 3 MeV. Moreover, the macroscopic fast neutron removal cross-section (neutron attenuation coefficient) was calculated and the results presented. The results show that the sample containing 10 % marble has the highest compressive strength and potentially good gamma ray and neutron radiation shielding properties.

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优化含大理石增强混凝土的屏蔽性能

本研究的目的是开发一种低成本、当地生产的具有最佳大理石含量的混凝土混合物。与非大理石参考混凝土相比，所得混合物的强度性能将得到提高，辐射屏蔽性能也将得到改善。为了实现这些目标，制备了五种混凝土混合物，其中含有0、5、10、15和20%的大理石废料粉末作为基于重量的水泥替代品。对这些样品进行抗压强度测试。测量了质量衰减系数（μm）、平均自由程（MFP）、有效原子序数（Zeff）和曝光累积因子（EBF）等屏蔽参数，并与WinXcom程序和MCNPX程序在0.015 3MeV光子能量范围内获得的结果进行了比较。此外，还计算了宏观快中子去除截面（中子衰减系数）并给出了结果。结果表明，含有10%大理石的样品具有最高的抗压强度和潜在的良好的伽马射线和中子辐射屏蔽性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Papers in Physics PHYSICS, MULTIDISCIPLINARY-

CiteScore

1.90

自引率

0.00%

发文量

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